291257981

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{769}}^1\times {\mathrm{887}}^1$

素因数の和:1724

約数の個数: 16

約数和(自身を含む): 339144960

約数和(自身を除く): 47886979

約数列:

[1, 7, 61, 427, 769, 887, 5383, 6209, 46909, 54107, 328363, 378749, 682103, 4774721, 41608283, 291257981]

約数ペア:

[(1, 291257981), (7, 41608283), (61, 4774721), (427, 682103), (769, 378749), (887, 328363), (5383, 54107), (6209, 46909)]